Roller bearing for radial and thrust loads



' G. L. .BOULISSIERE. ROLLER BEARING FOR RADIAL AND THRUST LOADS.

APPLICATION FILED AUG.II. 1920.

1,41 1,837 t Patented Apr. 4, 1922.

2 SHEETS-SHEET l.

G. L. BOUUSSIERE.

ROLLER BEARING FOR RADIAL AND THR.UST LOADS. APPLICATION FILED AUG-ll.1920.

1,41 1 3% Patented Apr. 4, 1922.

2 SHEETS-SHEET 2.

Gl-EDRGES I1. BOULISSIERE. 0F PUTEAUX, FRANCE.

RGLLER BEARING FOR RADIAL AND THRUST LOADS.

arissa.

T 0 all whom it may concern:

Be it known that I, GEORGES LAZARE Bonnrssncnn, a citizen of the FrenchRerollers in the shape of truncated cones and of circular metal cagesrovided on their circumference with cellular seats in order to keep theproper distance apart of the rollers.

They can be applied either tov bearings with concentric rings or torollers with juxtaposed rims forming single or double thrust blocks.

The system according to the invention is simple and strong. Moreover,the shape of the rollers is so calculated that the paths de scribedshould be in accordance witli" the theoretical paths in each type ofapplication. It follows that the working of the system in question makesit possible to absorb normally the smallest possible amount of energy onthe shaft. I I

In the accompanying. drawing given by way of example Figure 1 shows abearing system with taper rollers between concentric rims, with a metalcage keeping the distance between the rollers. I

Figure 2 is a plan of the above mentioned cage.

Figure 3 a modified shape of the cage of Figure 2.

Figure 4: a system of bearings with taper rollers similar to that ofFigure 1, with modifications in the supportingrings and in the shape ofthe metal cage.

Figure 5 is a plan of the cage of the system of Figure 1, with twoshapes of rollers that can be used in it.

Figure 6 is a. system of bearing with taper rollers between rimsarranged side by side forming a single thrust block.

Figure? a system as above between rims arranged side by side forming a.double thrust.

Figure 8 is a front elevation of the thrust books in which is shown themethod of the taper rollers, utilized for the oldin A I b w blocs: inFigures 6 and Q.

Specification of Letters Patent.

Patented Apr. at, 1922.

Application filed August 11,1220. 8eria1No. 402,813.

Figure 9 is a bottom view of the cages staying or bracing the rollers ofFigure 7.

The accompanying drawings correspond to a certain number of applicationsof taper rollers, that is to say rollers having the shape of a'truncatedcone, suitably held at a constant distance apart owing to metal cagesprovided with cells with which they engage, or owing to rims providedwith fingers at their periphery.

Flgure 1 shows the application of rollers of that type, inserted betweentwo concentric rings, on outside ring 1 and a central ring 2, the latterhaving on either side rims 3 and 4 stayed and secured to the said ringby means of rods 5, the heads of which form rivets. I

The taper rollers such as- 6 and 7, are arranged symmetrically of thetransverse axis of the set of rings (the transverse width of which is afunction of the pressure exercised by the shaft), so that the smallbases of the cone are arranged inside. These rollers rest on bearingsurfaces of conjugated cross-section,

provided on the one hand, on the outside of the supporting ring 2 and inthe interior of the'outer ring 1. v

The large bases of the cones constituting the rollers, have greatlyflattened conical surfaces 8 and 9 which press against the stop rings '3and 4 along the straight lins ab and ed, the extensions of which arearrangedso as to converge at 0 which is the centre of the system.

Moreover, the points 6 and f corresponding to the ends of thegeneratrices of contact of the roller cones with the bearing surfaces ofthe'ring 2, are arranged so as to be situated on a circle of a radiusoezofzoazoc. Such an arrangement ensures perfect symmetry of.the-rotating whole and guarantees a perfect bearing complying with thetheoretical conditions that every apparatus of this kind has to fulfillaThe upper part of Figure 1 which is above the aiiis of the shaft YYcorresponds, for the outer ring, to the ball and socket joint side,whilst the other corresponds to the simple side.

At 10 and 11 are shown two rims con nect-ed together by rivets such as12 and having mild steel plates suitably folded to e of a. 2.3, thebranches of side, WhllSli t Each of t" o rims suitable iss-sec nus roengage,

. can be, inoreoi i. twos (Figure 2) o r uro 3 Mt following:

l The position oi the roll 's the small bases pointing outwards, and thelarge ones inwards.

2.-The supporting rimsil and 4: are clone it away with and replaced by asuitable crosssection of the bearing surfaces.

' 3. The centralring made'in one piece is replaced by'two halfrings withotlset joints l3 and 14: held by the spindle-rivet '15.

4. The two rims constituting the cage driving the rollers,'are no longerarranged side by side but laced on the outer faces (small bases)" of t18 rollers according to 16 and 17 and stayed parallel to the-spindle by25 pins-rivets suchas 1S (PlanFigure l. 5. Finall the rollers can beindependent .like the re lers 19 and 20 of Figure 5, or connectedtogether by axial extensions such as 22, liketherollers 23 and 24(Figure '5).

Like in-the preceding case, the part of the bearing above the axis YYcorresponds, forv the outer rin to; the ball and socket joint e partabove corresponds to asimple side. I y -Figure 6' shows a modificationin the 1 method of application of taper rollers, corresponding to vtheiruse in a single thrust block. In such ajcase they are interposed betweenthe juxtaposed rims 25 and 26. v

The generatrices of the truncated cones constituting the rollers. suchas 27 and 28 have been yen a; suitable inclination so that they alconverge tolthe point 0, centre of the hearing In. this way, goodworking of the ap "atus ensur anda guarantee is obtai. t the pa ribhdare in call conditions.

accordance with thegeoine On their inner faces ant their .l-- pheries,the rings and are provided with annular. projections 29 and 30 which areintended to hold the rollers. The surface of the said projections incontact with the rollers is constituted by arcs of a circle of theradius omzonzopzm". spectto the associated automobile;

The large base of the roller such as 27 has a list horizontal partconnecting by i can oi t e coni su1'tacc"* JO the body of '1 nrorided isctions oh i In t ion proper, due bloclr, is rendered very l igure 8shows at ll, late al View of the. bea g thus constituted Figure"? shows,iiiication oi the sys tern of bearing represented in Figure 6, thismodified construction corresponding to a double thrust block. In thelatter thrust block, the rims 25 and 26 are replaced by outer rims 33and 34; be tween which. is inserted the central rim at either side ofwhich are arranged two series of rollers.

The upper part of the system corresponds to the ball and socket jointside, whilst the bottom part correspondsto the simple side. In the twosystems of bearings inFigures 7 and 8, the method of staying the rollers"which hasbeen provided, is as follows:

The cage which spaces the rollersapart consists of two rings 36 and 37of sheet metal steel placed side by side and connected i together bymeans of rivets 38, or the cage may be made in a single piece of castbrass I or bronze.

Figure 8 is a side elevation of the system thus constituted, whilstFigure 9 is a plan.

It will be easy to see that the flanges of therims 36 and 37 havesolutions of continuity on their circumference, which coneach oi the outr the pro ectiens eye the anisvZZ, a

- st-itutes seats with which the rollers engage.

applying the system of conical or taper rollers, without departing fromthe spirit of the invention.

I claim: I i

A roller bearing and thrust block structure comprising concentric innerand outer rings rranged in spaced relation and having their opposingsurfaces bevelled to form annular races, truncated conical rollersarranged in saidra'ccs, means to hold the rollers in. place, and crosssectionallyu shaped rings arranged in said. races, secured together, andhaving notches in their lgranfiphes in which said rollers are revolubly'tte in witness whereof I afiin my signature.

G. L; BOULISSXERE.

